<!DOCTYPE html>
<html>
  <head>
    <title>IOT LAO WANG</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <style>
      h1 {
        color:navy;
        text-align:center;
      }
      body {
        background-color: #eba2a2;
      }
    </style>
  </head>
  <body>
    <h1>Heading 1</h1>         
  </body>
</html>